Fennel Green (Foeniculum vulgare).

Green Fennel (Foeniculum vulgare) also called Common Fennel, is a hardy, perennial herb in the UK known for its edible leaves, stems, and seeds with a mild aniseed flavor. Sow seeds directly into the ground from March to May, choosing a sunny spot with well-drained soil, sow seeds approximately ½ inch deep and 8 inches apart, and thin them out once they are 8 to 10 inches tall.

Maintain consistent soil moisture but avoid waterlogged conditions. Fertilize with a general-purpose fertilizer, weed regularly, provide support with canes or twine and pinch back growing tips to encourage fresh growth. Optimise mutual pest control with companion plantings of lavender, cosmos, and marigolds. Harvest leaves as soon as they are large enough for culinary purposes. Leave a few plants to produce seed. The flowers are striking and provide much appreciated nectar for butterflies and other insects.Fennel can be left in the ground over winter, but may need protection in cold regions. Mulch the base with straw or compost in the autumn and divide plants every few years to maintain vigor.